Protector mechanism for looms



Dec. 20, 1949 w BLANQHARD v 2,491,916

PROTECTOR MECHANISM FOR LOOMS Filed Dec. 4, 1948 INVENTOR WILLIAMA.BLANCHARD W WW4 f M ATTORNEY Patented Dec. 20, 1949 a srm rnornoronMECHANISM non LooMs William A. Blanchard,

t Omissi n & Knbiv r e-e e rnq e This invention relates to improvementsin protector. mechaziisrnsior looms and it is the gen; eral object ofthe mvenuen to provide such a mechanism withaniznproved form qf daggerwhich can be held securely the protector rod in adj sted anguler'position.

Fly shuttle looms ordinarily have some f orin of protectonmechenisrn tofiect iooni stoppage should the shuttlefailto box at the proper time inthe 160m i 'l' ma in t se eeeheeisms employ a rod extending along theley and haying fingers at the ends thereof for engagement with theshuttle box hinders a 'dhaving alsq dag ers for engagemenfwith sto e e vwide'loornsthere may be eyer'al daggers on the rod and it is desirableto e eble 'tdset these dag: gers in eligninent with each etherfor "aeretiori withtheinrespbtii e stopping mechanisms distributed alongthebreast t mpt the loom. While the invention to he set forth hereinafteris more particularly adaptable to wide looms such as those used for'theweaving of paper makers 0, mar:

felts, the invention is equally applicable t rower looms with qnly twodaggers,

In order thet the daggers ma'y'befirrnly secured to the, protector rodbu'telsohe angularly adjust able thereon it is iinpfi rtflnt object of"the present invention to prqvide each daggerwit'h protector rod clampingsleeves or the like through which a clampingbolt passes. The latter whentightened forces "the sleeves against the rod to hold the dagger againstangular'nioven ent rele tive to the'rod,

With these and other objects in iew which will appear as the descriptionproceeds, the invenn s e i the e mhinat s and a n n of perts hereinaiterdescribed and set forth.

In the accompanying drawings, wherein the invention is shown as appliedmore particularly to awide loom, F 1 is a rertiee t n thrwg a of s cmhaving the invention applied thereto, Fig. 2 is an enlarged detailedplan View of the protector rod looking in the direction of arrow 2, Fig1, showing four daggers,

Fi 3 is a vertical seetiori en line 3:3, Fig. 2, the stopping nechenisrnbeing shown in dot and, dash lines;

Fig. 4 is an enlarged horizontal section on line m gj i Fi 5 s b qfietfig Y IW 9W 11? and side elevations at the left and rightrespectively f we upver c ampin memb r and 6 s a view si i ar t Fig: buWW1? h l wer slanting member:

Application Deee nber 4, 1948, Serial N 0. 3,580. 5 Q e stit i iilReferring particularly tgli'ig 1, the loom frame 1 Q stew-ts a a i whi hro lss a kw rdlr an 9r erq t' i e ar und a. r ker sha t E s. nd Q? t las pro de with. sh tle .1 2; ne 9f White's desi nated at it a shut: he; hx freii l, h f m f a binder I Q whichis pu hed f orwardly, or to theleft as ew 21' in Fi ti the shi l wh n th we h i b 25- eeei' eeludes abrea t t em side of which is mounted e cony'eritional ud a ,1 t 5tf a pgiwi t e l is mounted for roeking with respect to echan A as a bunterlexrer Hi:

et -tier in beetles. 2% 219 1. is nd a ed It} on the rentin estate sitet me, n, 6 f 's new is ehq b i is, t9

k Hat there will be a similar finger l end the looni. Also secured towe"??? gr e qrd es d s g ed D $9 ilqp l jqil Wi t hunt here willhe abunter for each dagger, and in Wide loo s there will be several daggersdisfrilqilted -n5 i a l lethbf t e Protector m1-v viewed in Fig. l, theshutti e at At a; ie'teii the loorri ci cle the shut; file i riinr rp srr l en er m of h s u me est as th l i wr n e wer l a r spending huntersit to permit continued running of the loom. If, on the other hand, theshuttle is tar 3; in erriving'at its shuttle box the protector rod willnot be rocked but will be held in position te cause engagenient of thehunters I6 by the daggers D, to effect loQrn stoppage as the layadvances. This stoppage will preizent the shuttle if trapped in theshedfiiom breelging the warp threads.

Any of the usual ineans may be employed for holding the protectorrodyieldingly in position with daggersaligned with their bunter levers eingshown herein but orhe red H are newts on en Q ively entector rod I1 isprovided with four daggers D,

but since all of these daggers are alike a detailed description will begiven of but one of them.v

namely, the one at the right end of Fig. 2.

The dagger D comprises a body 25 having a pointed forward end 26 forengagement with the bunter lever It. The rear end of the body 25 isenlarged in a vertical direction as at 21 and has a horizontal bore .28which snugly fits the protector rod ii. A second bore 29 extendingvertically through the enlarged part 21 is preferably at right angles tothe bore 28 and communicates with the latter but is located largely atthe right thereof as shown in Fig. 3.

Fitting snugly in the bore 29 are upper and lower tubular clampingmembers or sleeves 30 and SI, respectively, which may both be alike. Thebolt 32 extends through the tubular clamping members 30 and 3i and has ahead 33 which engages the under side 34 of the bottom clamp 31. Thelatter preferably extends a slight distance below the bottom 35 of part21 of the dagger body. A clamping nut 36 is screw threaded on the upperend of the bolt 32 and a look washer 31 preferably of a diameter notexceeding the outside diameter of the upper member 30 may be locatedbetween the latter and the nut. V

The upper clamp member 30 has the lower part of one side thereof formedwith an arcuate wedging surface All out preferably on the same radius asthat of the protector rod, and the upper part of the lower clamp memberis provided with a wedging arcuate surface 41 similar to surface 40.

In assembling, the rod I! will be fitted into bore 28 and the body 25slipped along the rod to its correct position. With rod l1 extendingpartly into bore 29 the upper and lower tubular clamping members willthen be inserted into the bore 29 with the wedging surfaces 40 and Mfacing adjacent parts of the curved or cylindrical surface of theprotector rod [1. The bolt 32 is then passed through the two wedgingmembers and the nut 36 tightened to clamp the wedging surfaces 49 and 4|firmly against their corresponding parts of the protector rod. If it bedesired to change the angular position of the dagger relatively to theprotector rod the nut 36 can be slackened and after the adjustment ismade retightened to clamp the members 40 and ti tightly against theprotector rod in the newly adjusted position. 7

The tubular clamping members have a snug fit with the bore 29 and therod I! will have a similar fit with the bore 28. By tightening theclamping members relatively large areas of the latter and the rod I!will be forced into tight 7 holding relation to adjacent surfaces of thedagger body. Both of the upper.and lower clamping members 30 and 3| areshown herein as e itism given that both clamping members can be forcedtightly against the protector rod.

Having thus described the invention it will be seen that changes andmodifications of the foregoing specific disclosure may be made withoutdeparting from the spirit and scope of the invention.

' vertically therethrough and communicating with V What is claimed asnew is:

1. In protector mechanism for a loom, aprotector rod, a protector daggerthrough which the rod passes, a pair of tubular clamping membersslidable in the dagger along an axis extending transversely of the rod,one member having a wedging surface engaging one part of the rod and theother member having another wedging surface engaging another part of the.rod, and

means. passing through said members drawing the latter together bymovement along said axis to effect tight engagement of said wedgingsurfaces against the parts of the protector rod corresponding thereto.

2. In protector mechanism for a loom, a dagger having a bore extendinghorizontally there-.

through, a protector rod in said bore, said dagger having a second boreextending vertically therethrough and communicating with the first boreand into which part of the protector rod extends, a pair of tubularclamp members in the second bore, one above and the other below the rod,and means passing through said members drawing the latter toward eachother in said second bore and into tight holding relation with said rodand a dagger.

ger having a bore extending horizontally there-V through and having asecond bore extending the first bore, a protector rod in the first boreextending partly into, the second bore, a pair of tubular clamp membersin the'second bore, oneabove the rod and having a wedging surface forengagement with one part of the rod and the other member below the rodand having a wedging surface for engaging another part of the rod, andmeans drawing said members toward each other in said second bore forcingsaid wedging surfacesagainst the corresponding parts of the rod toestablish firm holding relation between the rod, members and dagger..-

being of the same length so that they are in effect From the foregoingit will be seen that the 4. In protector mechanism for a loom, a daggerhaving a bore extending horizontally therethrough, a cylindricalprotector rod in said bore, said dagger having a second bore extendingvertically therethrough, and communicating with the first bore, part ofthe protector rod extending into the second bore, a pair of tubularclamp members within and closely fitting the. second I bore but movabletherein toward each other, one member being above the rod and having awedging surface engaging one part of that part of the rodextending intothe second bore and'the other member being belowthe rod'an'd having awedg ing surfaceengaging another part of that part of the rod extendinginto the second bore, and means drawing said members toward each otherin said second bore forcing said wedglng surfaces against thecorresponding parts of the rod to establish firm holding relationbetween the rod, members and dagger.

5. A dagger for a 100m protector rod, said dagger having a boretherethrough to receive the protector rod and having another bore.therethrough communicating with the first bore and extendingtransversely of the latter, a pair of tubular clamping members in thesecond bore, and a bolt extending through said membersby 10 Number 63which the latter may be drawn toward each other in said second bore.

WILLIAM A. BLANCHARD.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Name Date 2,264,770 Payne et a1. Dec. 2, 1941

